Unfortunately, I never managed to connect them to my phone or computer. In fact, while the initial bluetooth connection was achieved, it was almost immediately interrupted for no apparent reason. I did numerous factory resets in vain... They may be good headphones, but I was never given the opportunity to find out. So, complete disappointment (and a basket of useless, of course)... The only good thing is that I got them at a discount of 18 euros, so I'm not crying too many euros (if I had bought them at the original price of 40+ euros, I wouldn't even discuss it, I would feel very unlucky!).